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Letters Patent No. 76,Q12, dated March 24, 1868.

IMPROVED ROOFING-COMPOUND.

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TO ALL WHOM IT MAY GONOERNr Be it known that I, EPHRAIM B. WELLS, of NewYork, in the county of New York, and in the State of New York, haveinvented certain new and useful Improvements in Roofing-Gompound's; anddo hereby declare that the following is a-fiill, clear, an'dexactdescription thereofii My invention consists in'themixtnre of thefollowing ingredients: Coal-tar, fifty (50) ports; five (5) parts; lime,twenty (20) parts; magnesia, fifteen (15) ports silica, ten (10) ports.

The above-named ingredients, vhen perfectly mixed, forming athomogeneous mass and of suitable consistency, are designed to bespread'with aftrowel, o1" other-implement, on all kinds of roofs,boat-decks, or wherever the same may be required, and make a.roofing-compound superior to any ever before known or used.

I do not wish 5'.) confine myself to any specific proportions of theabove-namedingredients, as otherproportions may do nearly oswell. I

The above-described compound becomes very hard in a. short time, and isimpervious to water, will not wear outfast, is fi re-proof, and notliable to creek by heat or cold. 1

Having thus fully described my invention, what [claimas new, end desireto seizure by Letters Patent, is

l The within-described compound, when mixed and used, substantially asand fogthe purpose specified.

In testimony that I claim the foregoing, I have hereunto set my hand,this 25th day of January, 1868.

E. B. WELLS.

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Witnesses:

C. M. ALEXANDER, J. M. Meson".

